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Sheet feeder device, image reading apparatus and image forming apparatus

A paper feeding device and image technology, which can be applied in the direction of film changing device, image communication, projection device, etc., can solve the problems of increased maintenance trouble, installation and disassembly difficulty, etc.

Active Publication Date: 2007-07-11
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this two-end supported structure makes the installation and disassembly of the roller difficult, thus increasing the trouble of maintenance

Method used

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  • Sheet feeder device, image reading apparatus and image forming apparatus
  • Sheet feeder device, image reading apparatus and image forming apparatus
  • Sheet feeder device, image reading apparatus and image forming apparatus

Examples

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Embodiment Construction

[0028] A paper feeding device and an image forming apparatus having the same according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] FIG. 1 is a longitudinal sectional view showing the overall structure of an image reading apparatus 1 according to an embodiment of the present invention. This image reading apparatus 1 is used as a scanner of a copying machine or a facsimile apparatus and is capable of reading both sides of an original (paper in the present invention), and generally includes an optical system 2 and an ADF (Automatic Feeding System) provided above the optical system 2. manuscript).

[0030] The optical system 2 includes a CCD (Charge Coupled Device) reading unit 11 as a first reading section. Optical system 2 utilizes light source unit 13 and mirror unit 14 to form an image of a document placed on document table 12 and supported in a flat state on CCD reading unit 11 installed at...

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PUM

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Abstract

A sheet feeder device is provided, which includes: a sheet accommodating section for accommodating a stack of sheets; a sheet pick-up section operative to feed each of the sheets toward a sheet feed path when abutting against the stack; and a sheet separating section having a feed roller and a reverse roller which are located downstream of the sheet pick-up section and abut against each other, wherein the reverse roller is supported on a rotation support shaft in a manner to allow the reverse roller to be fitted around and removed from the rotation support shaft, the rotation support shaft having opposite ends supported by a device body.

Description

technical field [0001] The present invention relates to a paper feeding device for feeding originals, an image reading apparatus, and an image forming apparatus. Background technique [0002] Recently, efficient image reading and imaging have become possible by providing, for example, an original reading device configured to automatically feed and continuously read originals in the form of sheets in an image forming device. In addition, as the speed of reading original images has increased, it has become possible to process a large number of originals at high speed by developing digital technology to convert images into electronic data and form images based on electronic data. Such an original reading device is capable of having a large number of originals, for example, 100 to 200 sheets, placed thereon at the same time. Also, improvements in the document conveyance section of the document reading apparatus have enabled conveyance of various types of documents. [0003] Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H3/06H04N1/04G03B23/00G03G15/00B65H3/52H04N1/00
CPCB65H3/5261B65H2404/152
Inventor 长尾裕之
Owner SHARP KK